package cn.have.controller;

import cn.have.entities.CommonResult;
import cn.have.entities.Payment;
import cn.have.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * @ClassName PaymentController
 * @Author 王新
 * @Date: 2022/1/22 13:08 星期六
 * @Version 1.0
 * @Description
 */
@RestController
@Slf4j
public class PaymentController {
    @Resource
    private PaymentService paymentService;

    @Value("${server.port}")
    private String serverPort;

    @Resource
    private DiscoveryClient discoveryClient;

    @PostMapping(value = "/payment/create")//
    //public CommonResult create(Payment payment) 单个模块使用这个
    public CommonResult create(@RequestBody Payment payment) {
        int result = paymentService.create(payment);
        log.info("*****插入操作返回结果:" + result);

        if(result > 0) {
            return new CommonResult(200,"插入数据库成功,serverPort:" + serverPort, result);
        }else{
            return new CommonResult(444,"插入数据库失败",null);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id) {
        Payment payment = paymentService.getPaymentById(id);
        log.info("*****查询结果:{}",payment);
        if (payment != null) {
            return new CommonResult(200,"查询成功,serverPort:" + serverPort, payment);
        }else{
            return new CommonResult(444,"没有对应记录,查询ID: "+id,null);
        }
    }

    //获得该服务的信息
    @GetMapping(value = "/payment/discovery")
    public Object discovery() {
        List<String> services = discoveryClient.getServices();
        for (String element : services) {
            log.info("*****element" + element);
        }

        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId() + "\t" + instance.getHost() + "\t" + instance.getPort() + "\t" + instance.getUri());
        }
        return this.discoveryClient;
    }

    //手写本地负载均衡器
    @GetMapping(value = "/payment/lb")
    public String getPaymentLB() {
        return serverPort;
    }

    //超时设置，故意设置超时演示出错情况
    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeOut() {
        System.out.println("*****paymentFeignTimeOut from port: "+serverPort);
        //暂停几秒钟线程
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return serverPort;
    }
}
